package com.example.lotterysystem.common.utils;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;

import java.util.Collection;
import java.util.concurrent.TimeUnit;

@Configuration
public class RedisUtil {


    private static final Logger logger = LoggerFactory.getLogger(RedisUtil.class);


    @Autowired
    private StringRedisTemplate stringRedisTemplate;


    /**
     * 设置值
     * @param key
     * @param value
     * @return
     */
    public boolean set(String key, String value) {

        try{
            stringRedisTemplate.opsForValue().set(key,value);
            return true;
        }catch (Exception e){
            logger.error("RedisUtil error ,set (key:{},value:{})",key,value,e);
            return false;
        }
    }

    /**
     * 设置过期时间
     * @param key
     * @param value
     * @param time 单位:秒
     * @return
     */
    public boolean set(String key, String value, Long time) {
        try {
            stringRedisTemplate.opsForValue().set(key,value,time, TimeUnit.SECONDS);
            return true;
        }catch (Exception e){
            logger.error("RedisUtil err ,get({})",key,e);
            return false;
        }
    }

    /**
     * 获取值
     * @param key
     * @return
     */
    public String get(String key) {
        try {
            return StringUtils.hasText(key)
                    ? stringRedisTemplate.opsForValue().get(key)
                    : null;
        }catch (Exception e){
            logger.error("RedisUtil error ,get (key:{})",key,e);
            return null;
        }
    }

    public boolean del(String... key) {
        try {

            if (null != key && key.length > 0) {
                if (key.length == 1) {
                    stringRedisTemplate.delete(key[0]);
                }else {
                    stringRedisTemplate.delete(
                            (Collection<String>) CollectionUtils.arrayToList(key)
                    );
                }
            }

            return true;
        }catch (Exception e){
            logger.error("RedisUtil err ,del (key:{})",key,e);
            return false;
        }
    }

    public boolean hasKey(String key) {
        try {
            return StringUtils.hasText(key) ? stringRedisTemplate.hasKey(key) : false;
        }catch (Exception e){
            logger.error("RedisUtil error ,hasKey (key:{})",key,e);
            return false;
        }
    }




}
